86612364721642 has 8 divisors (see below), whose sum is σ = 137560814557956. Its totient is φ = 40758759868992.

The previous prime is 86612364721637. The next prime is 86612364721643. The reversal of 86612364721642 is 24612746321668.

It can be written as a sum of positive squares in 2 ways, for example, as 84161890692441 + 2450474029201 = 9173979^2 + 1565399^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (86612364721643) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1273711245873 + ... + 1273711245940.

Almost surely, 2^{86612364721642} is an apocalyptic number.

86612364721642 is a deficient number, since it is larger than the sum of its proper divisors (50948449836314).

86612364721642 is a wasteful number, since it uses less digits than its factorization.

86612364721642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2547422491832.

The product of its digits is 27869184, while the sum is 58.

The spelling of 86612364721642 in words is "eighty-six trillion, six hundred twelve billion, three hundred sixty-four million, seven hundred twenty-one thousand, six hundred forty-two".